Luke 8:16

But he who would adapt his lantern to the more perfect disciples of Christ, must persuade us by those things which were spoken of John, for he was a burning and a shining light. (John 5:35.) It becomes not him then who lights the light of reason in his soul to hide it under a bed where men sleep, nor under any vessel, for he who does this provides not for those who enter the house for whom the candle is prepared, but they must set it upon a candlestick, that is, the whole Church.

As if He said, As a lantern is lighted that it should give light, not that it should be covered under a bushel or a bed, so also the secrets of the kingdom of heaven when uttered in parables, although hid from those who are strangers to the faith, will not however to all men appear obscure.

(Hom. 15. in Matt.) By these words he leads them to diligence of life, teaching them to be strong as exposed to the view of all men, and fighting in the world as on a stage. As if he said, Think not that we dwell in a small part of the world, for ye will be known of all men, since it cannot be that so great virtue should lie hid.

(de Quaest. Ev. lib. ii. q. 12.) Or else in these words He typically sets forth the boldness of preaching, that no one should, through fear of fleshly ills, conceal the light of knowledge. For under the names of vessel and bed, he represents the flesh, but of that of lantern, the word, which whosoever keeps hid through fear of the troubles of the flesh, sets the flesh itself before the manifestation of the truth, and by it he as it were covers the word, who fears to preach it. But he places a candle upon a candlestick who so submits his body to the service of God, that the preaching of the truth stands highest in his estimation, the service of the body lowest.

(Quæst. in Script. 63.) Or perhaps the Lord calls Himself a light shining to all who inhabit the house, that is, the world, since He is by nature God, but by the dispensation made flesh. And so like the light of the lamp He abides in the vessel of the flesh by means of the soul as the light in the vessel of the lamp by means of the flame. But by the candlestick he describes the Church over which the divine word shines, illuminating the house as it were by the rays of truth. But under the similitude of a vessel or bed he referred to the observance of the law, under which the word will not be contained.